﻿/*
 * Authors:
 *   钟峰(Popeye Zhong) <zongsoft@gmail.com>
 *
 * Copyright (C) 2013 Zongsoft Corporation <http://www.zongsoft.com>
 *
 * This file is part of Zongsoft.CoreLibrary.
 *
 * Zongsoft.CoreLibrary is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * Zongsoft.CoreLibrary is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Zongsoft.CoreLibrary; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

using System;
using System.IO;
using System.Reflection;
using System.Collections;
using System.Collections.Generic;

namespace Zongsoft.Runtime.Serialization
{
	public class SerializationWriterContext
	{
		#region 成员字段
		private SerializationContext _serializationContext;
		private ISerializationWriter _writer;
		private object _value;
		private object _container;
		private MemberInfo _member;
		private int _index;
		private int _depth;
		private bool _isCircularReference;
		private bool _isCollection;
		private bool _terminated;
		#endregion

		#region 构造函数
		public SerializationWriterContext(ISerializationWriter writer, SerializationContext serializationContext, object container, object value, MemberInfo member, int index, int depth, bool isCircularReference, bool isCollection)
		{
			if(writer == null)
				throw new ArgumentNullException("writer");

			if(serializationContext == null)
				throw new ArgumentNullException("serializationContext");

			_writer = writer;
			_serializationContext = serializationContext;
			_value = value;
			_index = index;
			_depth = depth;
			_member = member;
			_container = container;
			_terminated = value == null || value.GetType().IsPrimitive;
			_isCircularReference = isCircularReference;
			_isCollection = isCollection;
		}
		#endregion

		#region 公共属性
		public SerializationContext SerializationContext
		{
			get
			{
				return _serializationContext;
			}
		}

		public SerializationSettings Settings
		{
			get
			{
				return _serializationContext.Settings;
			}
		}

		public ISerializationWriter Writer
		{
			get
			{
				return _writer;
			}
		}

		public int Depth
		{
			get
			{
				return _depth;
			}
		}

		public int Index
		{
			get
			{
				return _index;
			}
		}

		public object Value
		{
			get
			{
				return _value;
			}
		}

		public object Container
		{
			get
			{
				return _container;
			}
		}

		public MemberInfo Member
		{
			get
			{
				return _member;
			}
		}

		public string MemberName
		{
			get
			{
				return _member == null ? null : _member.Name;
			}
		}

		public Type MemberType
		{
			get
			{
				if(_member != null)
				{
					switch(_member.MemberType)
					{
						case MemberTypes.Field:
							return ((FieldInfo)_member).FieldType;
						case MemberTypes.Property:
							return ((PropertyInfo)_member).PropertyType;
					}
				}

				return null;
			}
		}

		public bool IsCollection
		{
			get
			{
				return _isCollection;
			}
		}

		public bool IsCircularReference
		{
			get
			{
				return _isCircularReference;
			}
		}

		public bool Terminated
		{
			get
			{
				return _terminated;
			}
			set
			{
				_terminated = value;
			}
		}
		#endregion
	}
}
